Breathing device for athletes



FIG. 1 is a side elevational view of a breathing device for athletes showing my new design, the opposite side being substanially the same,

FIG. 2 is a top plan view thereof,

FIG. 3 is a bottom plan view thereof,

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a front elevational view thereof. 

The ornamental design for a breathing device for athletes, as shown and described. 